434070138 has 8 divisors (see below), whose sum is σ = 868140288. Its totient is φ = 144690044.

The previous prime is 434070137. The next prime is 434070151. The reversal of 434070138 is 831070434.

It is a sphenic number, since it is the product of 3 distinct primes.

434070138 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (434070137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36172506 + ... + 36172517.

It is an arithmetic number, because the mean of its divisors is an integer number (108517536).

Almost surely, 2^434070138 is an apocalyptic number.

434070138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

434070138 is a wasteful number, since it uses less digits than its factorization.

434070138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72345028.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 434070138 is about 20834.3499538623. The cubic root of 434070138 is about 757.1582111077.

The spelling of 434070138 in words is "four hundred thirty-four million, seventy thousand, one hundred thirty-eight".